Converted previewer empty front indicator to text

[ericli3690]

Purpose / Description

Addresses @user1823's concerns at #18147 by implementing @BrayanDSO's suggestion. When a card's front is empty, the previewer tab now indicates this by appending (empty) to the tab title rather than using an overly-urgent looking red badge. Creates a new string resource and appends it in [TemplatePreviewerPage].

Fixes

Continues fixing #18107.

Approach

Adds a new string resource and appends it onto the tab title.

How Has This Been Tested?

Text displays properly on my end!

Checklist

Please, go through these checks before submitting the PR.

• You have a descriptive commit message with a short title (first line, max 50 chars).
• You have commented your code, particularly in hard-to-understand areas
• You have performed a self-review of your own code
• UI changes: include screenshots of all affected screens (in particular showing any new or changed strings)
• UI Changes: You have tested your change using the Google Accessibility Scanner

[github-actions]

Important

Maintainers: This PR contains Strings changes

1. Sync Translations before merging this PR and wait for the action to complete
2. Review and merge the auto-generated PR in order to sync all user-submitted translations
3. Sync Translations again and merge the PR so the huge automated string changes caused by merging this PR are by themselves and easy to review

[BrayanDSO]

Looks great to me! Thanks

[lukstbit]

I like this, thank you!

[github-actions]

Maintainers: Please Sync Translations to produce a commit with only the automated changes from this PR.

Read more about updating strings on the wiki,

• localization-administration
• download-localized-strings

[david-allison]

Hi there @ericli3690! This is the OpenCollective Notice for PRs merged from 2025-04-01 through 2025-04-30

If you are interested in compensation for this work, the process with details is here: https://github.com/ankidroid/Anki-Android/wiki/OpenCollective-Payment-Process#how-to-get-paid

We only post one comment per person per month to avoid spamming you, regardless of the number of PRs merged, but this note applies to all PRs merged for this month

Please understand that our monthly budget is never guaranteed to cover all claims - the cap on payments-per-person may be lower, but we try to make our process as fair and transparent as possible, we just need your understanding.

Thanks!